Enable Per-Monitor DPI Unless Explicitly Disabled

chrome/app/chrome_exe_main_win.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <windows.h>
 #include <malloc.h>
 #include <shellscalingapi.h>
 #include <stddef.h>
 #include <tchar.h>
 
@@ skipping 108 matching lines @@
 }
 
 void EnableHighDPISupport() {
   // Enable per-monitor DPI for Win10 or above instead of Win8.1 since Win8.1
   // does not have EnableChildWindowDpiMessage, necessary for correct non-client
   // area scaling across monitors.
   bool allowed_platform = base::win::GetVersion() >= base::win::VERSION_WIN10;
   const base::CommandLine* command_line =
       base::CommandLine::ForCurrentProcess();
   bool per_monitor_dpi_switch =
-      command_line->HasSwitch(switches::kEnablePerMonitorDpi) &&
       !command_line->HasSwitch(switches::kDisablePerMonitorDpi);
   PROCESS_DPI_AWARENESS process_dpi_awareness =
       allowed_platform && per_monitor_dpi_switch
           ? PROCESS_PER_MONITOR_DPI_AWARE
           : PROCESS_SYSTEM_DPI_AWARE;
   if (!SetProcessDpiAwarenessWrapper(process_dpi_awareness)) {
     SetProcessDPIAwareWrapper();
   }
 }
 
@@ skipping 106 matching lines @@
   RemoveAppCompatFlagsEntry();
 
   // Load and launch the chrome dll. *Everything* happens inside.
   VLOG(1) << "About to load main DLL.";
   MainDllLoader* loader = MakeMainDllLoader();
   int rc = loader->Launch(instance);
   loader->RelaunchChromeBrowserWithNewCommandLineIfNeeded();
   delete loader;
   return rc;
 }